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Mechanical respirator / From Wikipedia, the free encyclopedia
An iron lung, also known as a tank ventilator or Drinker tank, is a type of negative pressure ventilator, a mechanical respirator which encloses most of a person's body, and varies the air pressure in the enclosed space, to stimulate breathing.[1][2][3] It assists breathing when muscle control is lost, or the work of breathing exceeds the person's ability.[1] Need for this treatment may result from diseases including polio and botulism and certain poisons (for example, barbiturates, tubocurarine).
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The use of iron lungs is largely obsolete in modern medicine, as superior breathing therapies have been developed[citation needed], and due to the eradication of polio in most of the world.[4] However, in 2020, the COVID-19 pandemic revived some interest in the device as a cheap, readily-producible substitute for positive-ventilation ventilators, which were feared to be outnumbered by potential victims temporarily needing artificially assisted respiration.[5][6][7][8]